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|Type:||Artigo de evento|
|Title:||Assesment Of An Eulerian-eulerian Multiphase Cfd Framework For A Three Dimensional Modeling Of A Trickle Bed Reactor In Counter-current Operation|
|Author:||Moreno Cardenas S.|
Passos De Souza V.
De Souza Ferreira A.
Araujo Monteiro C.A.
|Abstract:||Commercial HDT processes usually operate in a trickle-bed regime, with co-current downward flow of gas and liquid over a randomly fixed bed of catalyst particles where reactions take place. Sulfur removal is known to be strongly inhibited by the competitive adsorption effect of H2S at the sulfided active sites of the catalyst. Thus, it is important in these processes to maintain the concentration of H2S as low as possible during the reaction to achieve a low sulfur content product at the reactor outlet. A three-dimensional fluid-dynamic study of a counter-current trickle bed reactor was carried out using CFD (Computational Fluid Dynamics) techniques with emphasis on determining the pressure drop and the distribution of liquid hold-up in the bed. A CFD tridimensional model based on an Eulerian - Eulerian multiphase approach was used to model the hydrodynamics of the pseudo two-phase flow in a trickle bed reactor in counter-current operation. The model provided information about phase distribution, velocity profiles, pressure drop liquid hold up for a isothermal trickle bed reactor at laboratory scale in counter-current operation. This is an abstract of a paper presented at the 2013 AIChE Spring Meeting & 9th Global Congress on Process Safety (San Antonio, TX 4/28-5/2/2013).|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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